NATIONAL SURVEY OF FAMILY GROWTH (NSFG), 2006-2010
STATA Pregnancy Data Dictionary
Warning: Edit this file at your own risk
Case identification number
Pregnancy order (number)
BB-2 # of Weeks or Months Currently Pregnant
BB-2 Current pregnancy length reported in months or weeks
Number of Months Currently Pregnant
BB-3 Which Trimester -- Current Pregnancy
BC-1 How Pregnancy Ended - 1st mention
BC-1 How Pregnancy Ended - 2nd mention
BC-1 How Pregnancy Ended - 3rd mention
BC-2 Number of babies born alive from this pregnancy
BC-3 Was this a multiple birth
Number of babies born alive from this pregnancy
BC-4a Month when pregnancy ended (if nonlivebirth)
BC-4a Year when pregnancy ended (if nonlivebirth)
CM for Pregnancy End Date (if nonlivebirth)
BC-4b R's age at pregnancy's end date
BC-5 Gestational Length of Pregnancy in Months
BC-5 Gestational Length of Pregnancy in Weeks
Gestational length of completed pregnancy (in weeks)
Gestational length of completed pregnancy (in months)
BC-6 DK followup for gestational length of a stillbirth
BC-7 DK followup for gestational length of a livebirth
BC-8 DK followup for gestational length of a miscarr/abor/ectop
Whether 1st liveborn baby from this pregnancy was BPA or BDS
Whether 2nd liveborn baby from this pregnancy was BPA or BDS
Whether 3rd liveborn baby from this pregnancy was BPA or BDS
BD-2 Sex of 1st Liveborn Baby from This Pregnancy
BD-3 Birthweight in Pounds - 1st baby from this pregnancy
BD-3 Birthweight in Ounces - 1st baby from this pregnancy
BD-4 Is Baby Low Birthweight- 1st baby from this pregnancy
BD-2 Sex of 2nd Liveborn Baby from This Pregnancy
BD-3 Birthweight in Pounds - 2nd baby from this pregnancy
BD-3 Birthweight in Ounces - 2nd baby from this pregnancy
BD-4 Is Baby Low Birthweight- 2nd baby from this pregnancy
BD-2 Sex of 3rd Liveborn Baby from This Pregnancy
BD-3 Birthweight in Pounds - 3rd baby from this pregnancy
BD-3 Birthweight in Ounces - 3rd baby from this pregnancy
BD-4 Is Baby Low Birthweight- 3rd baby from this pregnancy
BD-5 Month of delivery for this pregnancy
BD-5 Year of delivery for this pregnancy
CM for baby's or babies' date of birth (delivery date)
Current Age (in mos) of R's child(ren) from this pregnancy
BD-6 Father's age at time of child(ren) s birth
BD-7 Place where R gave birth
BD-8 Payment for delivery - 1st mention
BD-8 Payment for delivery - 2nd mention
BD-8 Payment for delivery - 3rd mention
BD-8 Payment for delivery - 4th mention
BD-9 Is this R's first c-section?
BD-10 Medical reasons reported for this C-section - 1st mention
BD-10 Medical reasons reported for this C-section - 2nd mention
BD-10 Medical reasons reported for this C-section - 3rd mention
BD-10 Medical reasons reported for this C-section - 4th mention
BD-10 Medical reasons reported for this C-section - 5th mention
BD-11 Was this c-section planned for by R?
BE-1 Weeks pregnant when R learned she was pregnant
BE-2a DK followup for KNEWPREG when gestation >= 6 mos
BE-2b DK followup for KNEWPREG when gestation < 6 mos
BE-3 Amount R smoked in 6 mos before R knew she was pregnant
BE-4 R smoked at all after R knew she was pregnant
BE-5 Amount R smoked during pregnancy after R knew she was preg
BE-6 Any prenatal care for this pregnancy
BE-7 Weeks pregnant at first prenatal care visit
BE-8a DK followup for BGNPRENA when gestation >= 6 mos
BE-8b DK followup for BGNPRENA when gestation < 6 mos
BF-1 R worked at all during this pregnancy
BF-2 Maternity leave taken for this pregnancy
BF-3 Why no maternity leave was taken for this pregnancy
BF-4 Weeks of maternity leave taken for this pregnancy
BF-5 DK followup - Was maternity leave <=4 or > 4 weeks
BF-6 Weeks of paid maternity leave for this pregnancy
BG-1 Whether child lives with R - 1st from this pregnancy
BG-2 Whether child is still alive - 1st from this pregnancy
BG-3 Month when child died - 1st from this pregnancy
BG-3 Year when child died - 1st from this pregnancy
CM for chld's date of death - 1st from this pregnancy
BG-4 Month when child stopped living with R- 1st from this preg
BG-4 Year when child stopped living with R- 1st from this preg
CM for date child stopped living w/R - 1st from this pregnancy
Age (in mos) when child last lived w/R-1st from this pregnancy
BG-5 Where child lives now - 1st from this pregnancy
BG-6 Legal agreement for where child lives - 1st from this preg
BG-7 Is R still legal mother of child - 1st from this pregnancy
BH-1 Whether R breastfed this child at all - 1st from this preg
BH-2 Has R fed this child anything other than breastmilk - 1st from this preg
BH-3 Age (mos/wks/day) when 1st fed non-breastmilk - 1st from this preg
BH-3 Units (mos/wks/days) for FRSTEATD_N - 1st from this preg
Age (in mos) when 1st fed non-breastmilk - 1st from this preg
BH-4 Has R stopped breastfeeding child - 1st from this preg
BH-5 Age (mos/wks/day) when stopped breastfeeding - 1st from this preg
BH-5 Units (mos/wks/days) for AGEQTNUR_N - 1st from this preg
Age (in mos) when R stopped nursing child - 1st from this preg
BG-1 Whether child lives with R - 2nd from this pregnancy
BG-2 Whether child is still alive - 2nd from this pregnancy
BG-3 Month when child died - 2nd from this pregnancy
BG-3 Year when child died - 2nd from this pregnancy
CM for chld's date of death - 2nd from this pregnancy
BG-4 Month when child stopped living with R - 2nd from this preg
BG-4 Year when child stopped living with R - 2nd from this preg
CM for date child stopped living w/R - 2nd from this pregnancy
Age (in mos) when child last lived w/R - 2nd from this pregnancy
BG-5 Where child lives now - 2nd from this pregnancy
BG-6 Legal agreement for where child lives - 2nd from this preg
BG-7 Is R still legal mother of child - 2nd from this pregnancy
BH-1 Whether R breastfed this child at all - 2nd from this preg
BH-2 Has R fed this child anything other than breastmilk - 2nd from this preg
BH-3 Age (mos/wks/day) when 1st fed non-breastmilk - 2nd from this preg
BH-3 Units (mos/wks/days) for FRSTEATD_N - 2nd from this preg
Age (in mos) when 1st fed non-breastmilk - 2nd from this preg
BH-4 Has R stopped breastfeeding child - 2nd from this preg
BH-5 Age (mos/wks/day) when stopped breastfeeding - 2nd from this preg
BH-5 Units (mos/wks/days) for AGEQTNUR_N - 2nd from this preg
Age (in mos) when R stopped nursing child - 2nd from this preg
BG-1 Whether child lives with R - 3rd from this pregnancy
BG-2 Whether child is still alive - 3rd from this pregnancy
BG-3 Month when child died - 3rd from this pregnancy
BG-3 Year when child died - 3rd from this pregnancy
CM for chld's date of death - 3rd from this pregnancy
BG-4 Month when child stopped living with R - 3rd from this preg
BG-4 Year when child stopped living with R - 3rd from this preg
CM for date child stopped living w/R - 3rd from this pregnancy
Age (in mos) when child last lived w/R - 3rd from this pregnancy
BG-5 Where child lives now - 3rd from this pregnancy
BG-6 Legal agreement for where child lives - 3rd from this preg
BG-7 Is R still legal mother of child - 3rd from this pregnancy
BH-1 Whether R breastfed this child at all - 3rd from this preg
BH-2 Has R fed this child anything other than breastmilk - 3rd from this preg
BH-3 Age (mos/wks/day) when 1st fed non-breastmilk - 3rd from this preg
BH-3 Units (mos/wks/days) for FRSTEATD_N - 3rd from this preg
Age (in mos) when 1st fed non-breastmilk - 3rd from this preg
BH-4 Has R stopped breastfeeding child - 3rd from this preg
BH-5 Age (mos/wks/day) when stopped breastfeeding - 3rd from this preg
BH-5 Units (mos/wks/days) for AGEQTNUR_N - 3rd from this preg
Age (in mos) when R stopped nursing child - 3rd from this preg
Outcome of Pregnancy (based on priority ordering)
Outcome of pregnancy (based on corrected/chron sorted data)
# of babies born alive from this preg (based on CCSD)
CM for Pregnancy End Date (regardless of outcome)
CM date when pregnancy ended (based on CCSD)
CM for Pregnancy Start Date
CM date when pregnancy began (based on CCSD)
CM for R's most recent live birth (based on CCSD)
CM for R's most recent completed pregnancy (based on CCSD)
CM for R's first completed pregnancy (based on CCSD)
CM date when R's 1st pregnancy began (based on CCSD)
CM for date of beginning of pregnancy interval
CM for date of end of pregnancy interval
Open interval: CM of date of beginning
Open interval: CM of date of end (mon of interview)
Currently pregnant: CM of date of beginning of interval
Currently pregnant: CM of date of end of interval (mon of interview)
Any method use in pregnancy interval
EG-1 Use any method in pregnancy interval?
EG-2 Before you became preg, stop using all methods?
EG-3 Stop using methods before preg because wanted preg?
EG-4 Method(s) using when became preg - 1st mention
EG-4 Method(s) using when became preg - 2nd mention
EG-4 Method(s) using when became preg - 3rd mention
EG-4 Method(s) using when became preg - 4th mention
EG-5 Reason not using/had stopped using method bec. wanted preg?
EG-6 Right bef preg, want to have baby at any time in future?
EG-7 probably want baby at any time in future or not?
EG-8 Verify didn't want baby at any time in future
EG-9 Right before preg, want to have baby at any time in future? (2nd asking)
EG-10 Become preg too soon, right time, or later than you wanted?
EG-11 How much sooner than wanted became preg (months or years)
EG-11 Choose mons or yrs for how much sooner became preg than wanted
EG-12a Right before preg, want to have baby with that partner?
EG-12b Right bef. preg, think might ever want to have baby w/that partner?
EG-13 How happy to be preg. scale (1-10)
EG-16 Right bef preg, did the father want R to have baby at any time in future?
EG-17 R became preg sooner, right time, or later than father of preg wanted
EG-18a Was R living w/father of preg at beginning of preg
EG-18b Was R living w/father of preg when preg ended/baby was born
EG-19 Did R tell father of preg that she was pregnant
EG-20 When did R tell father of preg about pregnancy: during or after?
EG-21 How hard trying to get/avoid pregnancy (0-10 scale)
EG-22 How much wanted to get/avoid pregnancy (0-10 scale)
EG-23 (unintended preg): method fail or R wasn't using properly-1st mention
EG-23 (unintended preg): method fail or R wasn't using properly-2nd mention
EG-24 (unintended preg) Reason didn't use contraceptn - 1st
EG-24 (unintended preg) Reason didn't use contraceptn - 2nd
EG-24 (unintended preg) Reason didn't use contraceptn - 3rd
EG-24 (unintended preg) Reason didn't use contraceptn - 4th
EG-24 (unintended preg) Reason didn't use contraceptn - 5th
EG-24a (unintended preg) Main reason didn't use contraception
Duration of completed pregnancy in weeks
Pregnancy outcome
Birth order
CM date pregnancy ended
Age at pregnancy outcome
CM date of conception
Age at time of conception
Formal marital status at pregnancy outcome
Whether pregnancy ended before R's 1st marriage (premaritally)
Informal marital status at pregnancy outcome - 6 categories
Formal marital status at conception - 5 categories
Informal marital status at conception - 6 categories
Number of weeks pregnant when R learned she was pregnant
Number of weeks pregnant at first prenatal care
Payment for delivery
Low birthweight - 1st baby from this preg
Living arrangements for 1st liveborn child from this pregnancy
Duration of breastfeeding in weeks
Use of maternity leave
Wantedness of pregnancy - respondent - Cycle 4 version
Wantedness of preg - R's partner (father of pregnancy) - Cycle 4 version
Wantedness of pregnancy - respondent - Cycle 5, 6 version
Wantedness of preg - R's partner (father of pregnancy) - Cycle 5, 6 version
Century month of R's birth
Age at interview
R's age at screener
Formal marital status
Informal Marital Status
Education (completed years of schooling)
Highest completed year of school or degree
Race
Hispanic origin
Race & Hispanic origin of respondent - 1977 OMB standards (respondent recode)
Race & Hispanic origin of respondent - 1997 OMB standards (respondent recode)
Pregnant at time of interview
CAPI-based total number of pregnancies
Total number of live births
Current health insurance coverage
Whether R received public assistance in prior calendar year
Poverty level income
Labor force status
Current religious affiliation
Place of residence (Metropolitan / Nonmetropolitan)
IB-8 R born outside of US
Year R came to the United States
PRGLNGTH Imputation Flag
OUTCOME Imputation Flag
BIRTHORD Imputation Flag
DATEND Imputation Flag
AGEPREG Imputation Flag
DATECON Imputation Flag
AGECON Imputation Flag
FMAROUT5 Imputation Flag
PMARPREG Imputation Flag
RMAROUT6 Imputation Flag
FMARCON5 Imputation Flag
RMARCON6 Imputation Flag
LEARNPRG Imputation Flag
PNCAREWK Imputation Flag
PAYDELIV Imputation Flag
LBW1 Imputation Flag
LIVCHILD Imputation Flag
BFEEDWKS Imputation Flag
MATERNLV Imputation Flag
OLDWANTR Imputation Flag
OLDWANTP Imputation Flag
WANTRESP Imputation Flag
WANTPART Imputation Flag
AGER Imputation Flag
FMARITAL Imputation Flag
RMARITAL Imputation Flag
EDUCAT Imputation Flag
HIEDUC Imputation Flag
RACE Imputation Flag
HISPANIC Imputation Flag
HISPRACE Imputation Flag
HISPRACE2 Imputation Flag
RCURPREG Imputation Flag
PREGNUM Imputation Flag
PARITY Imputation Flag
CURR_INS Imputation Flag
PUBASSIS Imputation Flag
POVERTY Imputation Flag
LABORFOR Imputation Flag
RELIGION Imputation Flag
METRO Imputation Flag
Final weight for the 1st 2 1/2 years of data collection (quarters 1 to 10)
Final weight for 4 years of data collection (quarters 1 to 16)
Final weight for years 3 and 4 of data collection (quarters 9 to 16)
Final weight for years 2, 3, and 4 of data collection (quarters 5 to 16)
Final weight for years 1 and 2 of data collection (quarters 1 to 8)
Randomized version of the sampling error computational unit
Randomized version of the stratum
Century month of interview date
Century month of interview minus 1 year (cmintvw-12)
Century month for the January three years prior to cmintvw
Century month for the January five years prior to cmintvw
Questionnaire version year (1, 2, 3 or 4)
Quarter when case was sampled
Regular- or double-sample portion of the quarter